Radio-noise elimination in all-metal aircraft

RADIO noise is the result of interaction among four components of the airplane, namely, electrical equipment, the radio receiver, the electric wiring, and the antennas. These components are produced by three different groups of manufacturers who have until recently made no effort to co-ordinate with each other on the radio-noise problem, the solution of which requires that these components be considered conjointly and that each party accept his part of the total responsibility. Until recently, this joint responsibility was not recognized, but each party was held to a rigid set of specifications which restricted them all to a very narrow line of behavior and made them responsible only for the meeting of some specific requirements. As a consequence, the various manufacturers considered their obligation as fulfilled when these specific requirements were met, whether the radio system was noise-free or not.